0
  • DE
  • EN
  • FR
  • International Database and Gallery of Structures

Advertisement

Quantification of Building Envelope Heat Losses on a District Level for Comparative Renovation Strategies Assessment

Author(s):





Medium: journal article
Language(s): English
Published in: Journal of Physics: Conference Series, , n. 1, v. 2654
Page(s): 012003
DOI: 10.1088/1742-6596/2654/1/012003
Abstract:

A renovation wave calls for an integrated, participatory, and neighbourhood to neighbourhood approach tailored to the local environments. This can be hindered by the lack of geometric and performance input data about the existing building stock. Depending on the Level of Detail (LOD) of buildings in national registries the calculation results for heat loss and energy performance differ. This paper aims to analyse the impact of LOD on heating energy demand (HED) and energy performance value (EPV) using existing data from the building registry and digital twin model. As a rule, compared to the calculations based on project data or to the measured energy consumption, the calculations based on the LOD building geometry overestimate the HED and EPV. When comparing different LOD, using the same building sample, the difference between heating energy demand (HED) and energy performance value (EPV) ranges from 1% to 57% and 1% to 41% (complex geometry) or from 2% to 7% and 2% to 5% (unsophisticated geometry) accordingly. The results exhibit a good correlation of the discrepancy between the difference in the shape of LOD and the building in the reality and show that the more complex the shape of the buildings, the more important it is to use highest LOD possible. Pooling the building envelope heat loss calculation on a district level improves accuracy on average allowing better assessment of comparative renovation strategies.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1088/1742-6596/2654/1/012003.
  • About this
    data sheet
  • Reference-ID
    10777688
  • Published on:
    12/05/2024
  • Last updated on:
    12/05/2024
 
Structurae cooperates with
International Association for Bridge and Structural Engineering (IABSE)
e-mosty Magazine
e-BrIM Magazine